Comment by eternityforest

It seems like the "Photo and offsets" approach is pretty commonly used, and I can't personally say I have any complaints, even though the CLI enjoyers might disagree.

Maybe it could be paired with a basic image generator for common layouts?

Or maybe it could just have a set of selectable hardcoded layout engines, since "counterclockwise from upper left" and "across then down" cover a lot of things.

"Base64 of an images plus and offsets table" could just be a layout type, and people could submit PRs for anything else.

Maybe it could be something like: Your pin(or callout) Tables

Your Sections, which could have an image and some text

Your Images, that would either be literal pictures or rendering instructions that reference a table

So you could have a complete cheat sheet for any device on one page.